The MTC is described as the maximal concentration of antimicrobial
agents that permit the target bacteria to grow (Oussalah et al., 2007).
The tested compounds with their respective MTC values against a low
concentration (103 CFU/ml) of six bacterial strains (E. coli O157:H7,
S. aureus, B. cereus, S. enterica serovar Typhimurium, L. monocytogenes
and P. aeruginosa) are presented in Table 2. Most of the compounds
showed antimicrobial activity, and the MTC values observed are 1 to 2
times smaller than the MIC values. However, AITC and garlic showed a
MTC value of more than 4 times smaller than their respective MIC
values.